GB2234906A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Nuclectomy instrument
Assignee: B Braun Medical Ltd
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Filing: 1990-07-24
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Granted: —
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Expires: 2010-07-24
Abstract
Abstract A nuclectomy instrument 1, e.g. for the removal of nuclear material from an intervertebral disc, comprises a tube 2 with an open distal end, a means at the distal end of the tube to engage nuclear material and to cause the deposit of nuclear material within the tube 2 (e.g. blades 6 or a drilling member 15-Fig. 5) and there being a means to cause the withdrawal along the tube of nuclear material deposited in the tube (e.g. a source of suction 5). <IMAGE>
Inventors
- 👤 John Anthony Norman Shepperd
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-22 22:09
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/32002; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/00681; A61B2017/00685
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
54 words
A nuclectomy instrument comprising a tube with an open distal end, a means at the distal end of the tube to engage nuclear material and to cause the deposit of nuclear material within the tube and there being a means to cause the withdrawal along the tube of nuclear material deposited in the tube.
Claim 2
Dependent Claim
54 words
A nuclectomy instrument comprising a tube with an open distal end, a means at the distal end of the tube to engage nuclear material and to cause the deposit of nuclear material within the tube and there being a means to cause the withdrawal along the tube of nuclear material deposited in the tube.
Claim 3
Dependent Claim
23 words
A nuclectomy instrument as in Claim 1, wherein two diametrically disposed angled blades are disposed in the open distal end of the tube.
Claim 4
Dependent Claim
21 words
A nuclectomy instrument as in Claim 1 or Claim 2, wherein the said tube is connected to a source of suction.
Claim 5
Dependent Claim
23 words
A nuclectomy instrument as in any of Claims 1 to 3, wherein said tube is rotatively and slidably located in an outer tube.
Claim 6
Dependent Claim
78 words
A nuclectomy instrument comprising an outer tube with an open distal end, a rotatable second tube or rod extending through said outer tube and emerging from said distal end, said emerging part of said second tube or rod terminating in a means to engage nuclear material and cause the deposit of nuclear material in the outer tube, and there being a means to cause the removal of the nuclear material along the outer tube or the inner tube.
Claim 7
Dependent Claim
78 words
A nuclectomy instrument comprising an outer tube with an open distal end, a rotatable second tube or rod extending through said outer tube and emerging from said distal end, said emerging part of said second tube or rod terminating in a means to engage nuclear material and cause the deposit of nuclear material in the outer tube, and there being a means to cause the removal of the nuclear material along the outer tube or the inner tube.
Claim 8
Dependent Claim
18 words
A nuclectomy instrument as in Claim 5, wherein the outer tube is connected to a source of suction.
Claim 9
Dependent Claim
46 words
A nuclectomy instrument as in Claim 5 and when a rotatable second tube is provided, the second tube is connected to a source of suction, and access holes are provided in the second tube to allow the passage of nuclear material deposited in the outer tube.
Claim 10
Dependent Claim
28 words
A nuclectomy instrument as in any of Claims 5 to 7, wherein the second tube or rod is provided at its distal end with a helically fluted drill.
Claim 11
Dependent Claim
16 words
A nuclectomy instrument as in Claim 8, wherein said helically fluted drill is an archimedes screw.
Claim 12
Dependent Claim
73 words
l~. A nuclectomy instrument as in any of Claims 5 to l~, wherein an enlarged chamber is provided on the proximal end with a connection to a source of suction, the open end of the chamber having a guide sleeve for the second tube or rod and a cap to form a sliding seal with the end of the second tube or rod passing out of the second tube through the guide sleeve.
Claim 13
Dependent Claim
25 words
A nuclectomy instrument substantially as hereinbefore described with reference to Figures 1 to 3,
Figure 4, Figure 5 or Figure 6 of the accompanying drawings.
Claim 14
Dependent Claim
25 words
A nuclectomy instrument substantially as hereinbefore described with reference to Figures 1 to 3,
Figure 4, Figure 5 or Figure 6 of the accompanying drawings.
Claim 15
Independent Claim
9 words
A method of removing nuclear material as herein defined.
Claim 16
Independent Claim
9 words
A method of removing nuclear material as herein defined.
References Cited (Backward Citations)
GB2038640A
Cited
US4274414A
Cited
WO1981001363A1
Cited
GB2111390A
Cited
EP0125070A2
Cited
EP0174084A2
Cited
GB2198950A
Cited
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